Home / 12,220.29-18,331.46-3,901.48

Finding the Fourth Proportional to 12,220.29, 18,331.46 and 3,901.48

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Solution

The fourth proportional to 12,220.29, 18,331.46 and 3,901.48 is: 5,852.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,220.29 : 18,331.46 = 3,901.48 : x
  2. Step 2: Convert to fraction form
    12,220.29/18,331.46 = 3,901.48/x
  3. Step 3: Cross multiply
    12,220.29x = 18,331.46 × 3,901.48
  4. Step 4: Simplify right side
    12,220.29x = 71,519,824.56
  5. Step 5: Solve for x
    x = 71,519,824.56/12,220.29
  6. Step 6: Final answer
    x = 5,852.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.